- Fulbright Research Fellow, University of Texas at Austin (Marketing)

- Visiting Scholar, Marshall School of Business, USC (University of Southern California)

- Visiting Professor, AIT(Asian Institute of Technology), Bangkok, Thailand

- Certified Hotel Administrator, American Hotel & Lodging Association(AHLA)

- International Expert, World Bank Project -STAID-, BPPT, Jakarta, Indonesia

- International Expert, Hangzhou Tourism Commission, China

- Editorial Board, Journal of Hospitality & Tourism, Culture & Environment Conservation Society

- Supervising Faculty, Doctoral Program, Maastricht School of Management, Netherlands

- International Associates, Belle Tourism International Shanghai Ltd., China

- Editorial Board, Journal of Global Scholars of Marketing Science(JGSMS), Taylor & Francis

- An Executive Committee Member (regional vice-president) of the International Tourism Studies Association(ITSA), Washington D.C.

- Editorial Board, International Journal of Tourism Cities(IJTC), International Tourism Studies Association(ITSA)

- 세종대학교 호텔관광대학장

- 세종대학교 관광대학원장

- 세종대학교 관광산업연구소장